Use PHP to filter code in HTML that may be exploited to introduce external dangerous content. Sometimes, it is necessary to allow users to submit HTML content in order to enrich the information posted by users. Of course, some codes that may cause confusion in the display page layout are also within the filtering scope.
#HTML posted by users, filtering dangerous codes
The following is the quoted content:
{ $farr = array( "/s+/", //Filter excess white space "/<(/?)(script|i?frame|style|html|body|title |link|meta|?|%)([^>]*?)>/isU", //Filter Latest Articles by Author
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